The Renewable House, a new demonstration house that has been designed to illustrate that low cost and low carbon are compatible, has been officially opened.

Press Release

The Renewable House, a new demonstration house that has been designed to illustrate that low cost and low carbon are compatible, has been officially opened.

Built at the BRE Innovation Park and officially opened at Insite 2009, the Renewable House is a demonstration of the commercial viability of building affordable homes from renewable materials.

The house has been designed to meet Level 4 of the Code for Sustainable Homes, with a build cost of £75,000, excluding groundworks and utilities.

Unlike many other houses that meet Level 4 of the Code for Sustainable Homes, the Renewable House features very few additional technologies. Instead the performance of the house has been made possible through the ingenious use of materials which have been used to create a thermally efficient and low carbon building envelope. By using limited technologies – which can have a short life span, therefore require on-going replacement, upgrading or maintenance – the house has also clearly demonstrated cost efficiencies.

A SPECIAL energy-efficient house made from hemp, designed by Archial Architects, has been unveiled at the BRE Innovation Park, which showcases the future of low-carbon and sustainable buildings.

The three-bedroom Renewable House, which costs £75,000 to build, not including ground works or utilities, uses renewable materials to deliver a well designed, yet low-cost, affordable home.

The external walls are constructed from a revolutionary sustainable material called Hemcrete – provided by manufacturer Lime Technology – made from hemp plants grown and harvested in the UK and lime-based binder.

Hemp is one of the fastest growing biomasses and is often used in paper, textiles, biodegradable plastics, health food and fuel.

It is estimated that The Renewable House’s carbon footprint will be about 20 tonnes lower than a traditional brick-and-block house. The hemp absorbs about five tonnes of carbon dioxide from the atmosphere during its rapid growth period, which then becomes locked into the fabric of the building, making the thermal Hemp-Line walling solution “carbon negative”.

The Renewable House meets level 4 of the Government’s Code for Sustainable Homes (CSH) – a national standard which measures the sustainability of homes against a set of design categories such as energy consumption and building materials. The Government’s target was for all homes from 2016 to be built against code level 3 standards.